Finding the Fourth Proportional to 791,513,783.62, 1,092,419,962.70 and 439,203,276.45
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Solution
The fourth proportional to 791,513,783.62, 1,092,419,962.70 and 439,203,276.45 is: 606,173,179.55
Step by Step Solution
- Step 1: Write the proportion equation
791,513,783.62 : 1,092,419,962.70 = 439,203,276.45 : x - Step 2: Convert to fraction form
791,513,783.62/1,092,419,962.70 = 439,203,276.45/x - Step 3: Cross multiply
791,513,783.62x = 1,092,419,962.70 × 439,203,276.45 - Step 4: Simplify right side
791,513,783.62x = 479,794,426,877,226,816 - Step 5: Solve for x
x = 479,794,426,877,226,816/791,513,783.62 - Step 6: Final answer
x = 606,173,179.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.